По запросу: "chat square plain for android" найдено 144 иконки.

moscow
cloud_message [#1566] Created with Sketch.
emoji_tongue_sticking_out _square_round [#442] Created with Sketch.
Google Play icon
Signal
android
emoji_surprised_square_glasses [#417] Created with Sketch.
androidstudio
emoji_sad_square_round [#432] Created with Sketch.
emoji_sad_square [#402] Created with Sketch.
chevron-up-square Created with Sketch Beta.